pandemic alert phase
http://www.pandemicflu.gov/
WHO Phase 3:
No or very limited human-to-human transmission
http://www.who.int/csr/disease/avian_influenza/phase/en/index.html
US Stage 0:
New domestic animal outbreak in at-risk country
http://www.pandemicflu.gov/plan/federal/fedresponsestages.html
